A large-scale drone attack hit several parts of Russia late on 10 July and continued into the early hours of 11 July. Explosions were reported in multiple areas, including Kursk Oblast, Tula city in Tula Oblast,

One of those key frontline areas is Pokrovsk, a strategic hub in eastern Ukraine, which Moscow has been trying to capture for more than two years. According to the head of Ukraine's army Gen Oleksandr Syrskyi, Russia has concentrated some 111,000 troops in that area.

Hundreds of Russian drones flying from all directions attacked Kyiv overnight into Thursday in an apparent new Russian tactic, marking a second consecutive night of ferocious attacks on Ukraine.

The officials did not say how many weapons were being sent and whether the shipment was complete. It was also unclear whether the new shipment represented any change in policy by the administration.